title: Giardia spp. and Cryptosporidium spp. In the Ivaí Indigenous Land, Brazil.
abstract: The objective of this study was to investigate the occurrence of cysts of Giardia spp. and oocysts of Cryptosporidium spp. in waters of the Ivaí Indigenous Land, Brazil. Samples of river and spring water and of treated water were filtered and analyzed by direct immunofluorescence (Merifluor kit, Meridian Bioscience, Cincinnati, Ohio). Of 21 samples, 7 from each locality, 3 (3/7, 42.8%) from a river were positive for Giardia (mean concentration 2.57 cysts/L), and 1 (1/7, 14.3%) was positive for Cryptosporidium (6 oocysts/L). From springs, 1 sample (1/7, 14.3%) was positive for Cryptosporidium (6 oocysts/L). One sample (1/7, 14.3%) from treated water was positive for both, with 4 oocysts/L and 2 cysts/L. Giardia was the more frequent protozoan present.
authors.affiliation: Programa de Pós-Graduação em Ciências da Saúde, Universidade Estadual de Maringá-UEM, Maringá, Paraná, Brazil. Bolsista CAPES. leticianishi@hotmail.com
authors.forename: Letícia
authors.initials: L
authors.lastname: Nishi
authors.forename: Rosângela
authors.initials: R
authors.lastname: Bergamasco
authors.forename: Max Jean de Ornelas
authors.initials: MJ
authors.lastname: Toledo
authors.forename: Dina Lúcia Morais
authors.initials: DL
authors.lastname: Falavigna
authors.forename: Mônica Lúcia
authors.initials: ML
authors.lastname: Gomes
authors.forename: Lúcio Tadeu
authors.initials: LT
authors.lastname: Mota
authors.forename: Ana Lúcia
authors.initials: AL
authors.lastname: Falavigna-Guilherme
mesh_terms: D000818:Animals; D001938:Brazil; D003458:Cryptosporidium / Q000302:isolation & purification*; D005618:Fresh Water / Q000469:parasitology*; D005872:Giardia / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D018508:Water Purification; D014881:Water Supply / Q000592:standards*; D014887:Weather